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// Copyright (c) 2014 Couchbase, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package query
import (
"reflect"
"testing"
"github.com/blevesearch/bleve/analysis"
)
func TestTokenStreamToPhrase(t *testing.T) {
tests := []struct {
tokens analysis.TokenStream
result [][]string
}{
// empty token stream returns nil
{
tokens: analysis.TokenStream{},
result: nil,
},
// typical token
{
tokens: analysis.TokenStream{
&analysis.Token{
Term: []byte("one"),
Position: 1,
},
&analysis.Token{
Term: []byte("two"),
Position: 2,
},
},
result: [][]string{[]string{"one"}, []string{"two"}},
},
// token stream containing a gap (usually from stop words)
{
tokens: analysis.TokenStream{
&analysis.Token{
Term: []byte("wag"),
Position: 1,
},
&analysis.Token{
Term: []byte("dog"),
Position: 3,
},
},
result: [][]string{[]string{"wag"}, nil, []string{"dog"}},
},
// token stream containing multiple tokens at the same position
{
tokens: analysis.TokenStream{
&analysis.Token{
Term: []byte("nia"),
Position: 1,
},
&analysis.Token{
Term: []byte("onia"),
Position: 1,
},
&analysis.Token{
Term: []byte("donia"),
Position: 1,
},
&analysis.Token{
Term: []byte("imo"),
Position: 2,
},
&analysis.Token{
Term: []byte("nimo"),
Position: 2,
},
&analysis.Token{
Term: []byte("ónimo"),
Position: 2,
},
},
result: [][]string{[]string{"nia", "onia", "donia"}, []string{"imo", "nimo", "ónimo"}},
},
}
for i, test := range tests {
actual := tokenStreamToPhrase(test.tokens)
if !reflect.DeepEqual(actual, test.result) {
t.Fatalf("expected %#v got %#v for test %d", test.result, actual, i)
}
}
}
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